Re: H hesitation to shut down

Posted by Pete L on August 25, 2004 at 17:15:39 from (198.36.89.4):

In Reply to: H hesitation to shut down posted by Kevin on August 25, 2004 at 11:59:26:

Any engine that is shut down hot, and at a high speed, is not good for it. True.....only the spark is cut to turn off the engine, but besides the opportunity for dieseling, turning it off at a high RPM brings in more cycles of air and gasoline prior to the stoppage of movement that have a tendency to wash the oil from the cylinders. I laugh at the folks that still goose the throttle on their cars with the thought that "it gives a little more oil in the cylinders before it shuts off". Poppycock! They're actually doing more harm than good. Having experience in maintaining tugboat engines, we always throttled back the engines to allow them to cool for a minute or two, then stopped them at minimal RPM's. The Farmall tractor that we used to have at my dad's hunting camp years ago was shut down purely with the spark for the winter. Several times, when we went to start it in the spring or 2 years later, the engine would be slightly stuck. Since then, prior to a long term storage, I shut off the gas and let the engine starve it self off. Haven't had an issue since. My 3 cents worth (adjusted for inflation)

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